The power injector increases wireless LAN deployment flexibility of the access point by combining 55-VDC power with the data signal, and sending both to the connected access point. The power injector combines 55-VDC power (supplied by internal power supply) with the data signal, sending both to the access point. The power injector provides up to 60 W over all four wire pairs of shielded, outdoor rated Ethernet cable. The total length of the Ethernet cable from the AP to the switch must not exceed 320 ft (100 m). The wire gauge of the cable must be 26 AWG. The Ethernet cable from the switch to the power injector must be a shielded CAT5e or higher Ethernet cable. The Ethernet cable from the power injector to the access point must be a shielded outdoor-rated CAT5e or higher Ethernet cable with a 0.20 to 0.35 inch diameter. A shielded, outdoor Ethernet cable connects the power injector to a 10/100/1000 Ethernet switch, hub, or network, and another shielded, outdoor cable carries power and data to the access point's Ethernet port. The power injector's AC power receptacle connects an approved AC power cord to a wall outlet or power strip. The power injector can be mounted on most horizontal and vertical surfaces, but must be mounted in a vertical orientation to comply with safety requirements.